Adjustable broom or brush



M 19 1935. c WILDHABER ADJUSTABLE BROOM OR BRUSH Filed May 15, 1953 INVENTOR CHE/ST/AN I/V/LDHABEE Q? m M w 010 ma w 9 Z i .25: a 5

Patented Mar. 1%, 1935 rare-s anrns'rannn sitcom on eaten Christian wiidhaberl instin- Kis'co, "MY. Application May is, 1933, Serial No. 676,835

screens. (01. 306 2) block of the brush with respect to the handle,

and for-securely lockingsaid stock or block after having adjusted the same.

A further object is the"pro vision of a broom 'or a brush having a handlewhich can be adjusted'simultaneously in averti'cal and a horizontal plane with respect to the block.

Still 'another object'is the provision of a broom or a' brush, havinga handle, which can be adjusted in a vertical planepto the largestpossible extent. a

The above and other objectsoi this invention maybe realized through the provision of a broom having a holder, which is pivotally connected with a plate provided with grooves fitting into corresponding projections of another plate carried by the block of the brush; the holder may be provided with means cooperating with a member carried by the block orthe first-mentioned plate for the purpose of preventing the holder from rotating around its pivot after adjustment in the vertical plane has taken place.

The invention will appear more clearly from the following detailed description when taken in connection with the accompanying drawing showing preferred embodiments of the inventive idea.

In the drawing:

Figure 1 is a side view of an adjustable broom.

Figure 2 is a top view of the broom illustrated in Figure 1.

Figure 3 is a section along the line 3-3 of Figure 2.

The broom illustrated in Figures 1, 2 and 3 of r the drawing comprises a wooden handle 10,

which is inserted into a holder 11 and is connected with said holder by any suitable means not shown in the drawing.

A pivot 12 is used for connecting the holder 11 with a round plate or disc 13 provided with a plurality of grooves 14. As shown in Figures 1 and 2, the plate 13 is slightly curved, and the grooves 14 are formed on the lower surface of the plate 13. The bottom of these grooves projects in the form of ribs situated on the upper respectively,

'24 on the bolt 22.

surface of 'the plate 13, said grooves and ribs extending radially from "the center of the plate to the edges thereof. The block 15. of the brush carries the bristles [16, which are attached: to

the block in any suitable manner. "The block 15 I carries also a plate 17, which is rigidly connected with theblok 'by means of nai1s'2 7 "or by any othersuit'able means. The plate 17 is similar in shape to the plate 13" and is provided with ribs 18 corresponding in sizeand shape to the grooves 14' formed on the plate 13. The ribs 12, situatedon the upper sur'face of-the plate 17,

form the bottom of grooves situatedjon the lower surface of the plate 17; 'Due to this arrangement, the plates l3and i'l'rna ybeused for locking the block 15 with resident the holder 11 after the block has been rotated 'ina horizontal plane. The plate '13 'is providedwith a central opening 19, while thefpl'ate 17 has an opening 20of the same size. The b1ock 15 has a central bore 21 and carries a bolt 22, which asses through thebore 21 as; we'llas through the cen-' m1 openings 19am "20 of theplats 1311116 17,

The upper portion of the bolt 22 is provided with screw threads 23 and carries a nut 24, as well as a washer 25. A coiled spring 26 is situated between the washer 25 and the plate 13 and is used for pressing the plate 13 against the late 17. The force with which the spring 26 presses the'plate 13 against the plate 17 may be varied by changing the position of the nut If the operator finds that too much force is required for swinging the block 15 around the central axis of the bolt 22, he

will move the nut 24 somewhat further towards.

the upper end 31 of the bolt 22 and thus diminish the pressure exerted by the spring 26.

On the other hand, if the operator finds that the block 15 is not securely locked with respect to the holder 11 and that the projections 18 of the plate 1'7 may snap out of the grooves 14 of the plate 13 while the broom is being used, he will move the nut 24 downwards along. the screw threads 23 and thus further compress the spring 26, increasing the pressure of said spring against the plate 13.

A resilient band or spring 28 is used for locking the holder 11 after it has been rotated around its pivot 12, and thus adjusted in a vertical plane. This spring 28 is attached at one of its ends to the holder 11 by a bolt or screw 29, and is provided at its other end with a number of holes or openings 30, 30a, which are somewhat larger in size than the diameter of the bolt 22.

The

upper end 31 of the bolt 22 may pass through any one of the holes 30, 30a.' The spring 28 is preferably somewhat curved in shape'to enable the end 31 of the bolt 22 to pass freely through any one of the holes.

If the operator desires to adjust the handle of the broom in a vertical plane and, for instance, to move the handle 10 from the position shown in full lines in Figure 1 to the position shown in broken lines in the same figure, he will raise the spring 28 until the end 31 of the bolt 22 comes out of the opening 30. As soon as the end 31 is disengaged, the holder 11 may be oscillated around the pivot 12 until the end 31 comes opposite another one of the openings, for instance the opening. 30a. Due tothe resiliency of the spring 28, this spring will press against the end 31, while the holder-11 is being oscillated.

As soon as an opening 3011 comes opposite the end 31, the end Blwill pass through said opening, so that the holder 11 will be locked in a new position. By increasing the length of the spring 28 and the number of holes 30, 30a, 'formed therein, the number of the various positions, in which the holder 11 can be locked, will be also increased. 7

As illustrated in Figure 1 of the drawing, the spring 28 is attached to the holder 11 close to the seam or joint 11a of the latter, while the pivot 12 is connected with the tapered end 11b of the holder 11. Due to this arrangement, the holder 11 may form an angle of with the vertical surfaces of the block 15.

What is claimed is:

1. A handle attachment comprising a holder, a plate pivotally connected with said holder, a block, a second plate rigidly connected with said block, the second-mentioned plate comprising projections adapted to snap into corresponding 'grooves formed in the first-mentioned plate, a

bolt passing through a boreformed in said block, a nut carriedby-said bolt, a coiled spring sur rounding said bolt and situated between said nut and the first-mentioned plate, and a member carried by said holder at one end thereof and having a plurality of holes atits other end, an

end of said bolt fitting into said holes. i 2. A handle attachment comprising a holder having a tapered end, a plate, a pivot connecting 5 the tapered end of said holder with said plate, a block, a second plate rigidly connected .withlsaid 7 block, the second-mentioned .plate comprising projections adapted to snap into corresponding i grooves formed in the first-mentioned plate, a 10 rality of holes at one'end thereof, an end of 1 5- said bolt fitting into said holes, and means con-. necting. the other end of said member with said holder, the last-mentioned means and said pivot being situated on-opposite sides of said holder;

3. A handle attachment, comprising aholder, 20

a round plate pivotally connected with, said holder, a plurality of radial grooves being formed in said plate, another plate having correspond ing projections adapted to snap into said grooves I a block, the second-mentioned platebeing rigid- 25 1y connected with said block, a'bolt passing through a bore formed in said block and through openings formed in said plates, the threaded end of said bolt projecting beyond said plates and being adjacent to said holder, a nut carried. by 30 said end of the bolt, a spring surrounding: said end of the bolt and situated. between said nut and the first-mentioned plate, and means connected with said holder ,for locking the same in one of a number of positions with respect to the "35 first-mentioned plate, said means consisting of a leaf spring fixedly connected to said holder. and extending from said holder toward said round plate, said leaf spring being provided with a plurality of openings therein adapted to receive' the -40, end of said bolt above said nut, and fix the holder in position relatively to the first-mentioned plate.

, CHRISTIAN 

